Railways: surface track – Rail joints – Tread bridge
Patent
1990-08-06
1992-02-25
Werner, Frank E.
Railways: surface track
Rail joints
Tread bridge
238225, E01B 1100
Patent
active
050906186
ABSTRACT:
Two rails are disposed in a direction of wheel travel and joined at their ends so as to permit continuous rolling of the wheel from one rail to the other. These rails maintain the wheel at a predetermined elevation, and the ends have a gap therebetween. The wheel is supported in a region overlapping the gap at an elevation equal to the predetermined elevation of the rails without any significant drop of the wheel into the gap. The wheel may be elevated to maintain the predetermined elevation by contacting a rolling surface location thereon, differing from that normally contacted by at least one of the two rails. The wheel may also be elevated over the gap by a support positioned along the side of at least one of the two rails that extends outward away from the end of the rail in the direction of wheel travel.
REFERENCES:
patent: 210705 (1878-12-01), Neff
patent: 675645 (1901-06-01), Wood
patent: 750736 (1904-01-01), Urbanitzky
patent: 972148 (1910-10-01), Bacon et al.
patent: 1004067 (1911-09-01), Papendry
patent: 1041403 (1912-10-01), Bacon et al.
patent: 1378425 (1921-05-01), Rosebrook
Eller James
Werner Frank E.
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